Business First:
Nunspa - I had the same problem...Started with the New 1.10 BETA Interface Kit only.
I fixed it by downloading the older interface kit found at
http://www.blizzard.com/support/wow/?id=aww01669p
I loaded it and ...All the toolbox items went away!
So I reloaded the New BETA Interface kit on top of the old one (D...